John David Booty

Scott Boehm / Getty Images

Minnesota Vikings quarterback John David Booty drops back to pass during a preseason game against the Kansas City Chiefs on Aug. 21. Booty, who was selected by Minnesota in the fifth round of the 2007 NFL draft, served as Matt Leinart's backup for three years before leading the Trojans to victory over Illinois in the 2007 Rose Bowl.

Minnesota Vikings quarterback John David Booty drops back to pass during a preseason game against the Kansas City Chiefs on Aug. 21. Booty, who was selected by Minnesota in the fifth round of the 2007 NFL draft, served as Matt Leinart's backup for three years before leading the Trojans to victory over Illinois in the 2007 Rose Bowl. (Scott Boehm / Getty Images)

Minnesota Vikings quarterback John David Booty drops back to pass during a preseason game against the Kansas City Chiefs on Aug. 21. Booty, who was selected by Minnesota in the fifth round of the 2007 NFL draft, served as Matt Leinart's backup for three years before leading the Trojans to victory over Illinois in the 2007 Rose Bowl.